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187 Commits

Author SHA1 Message Date
Owen Anderson 487375e9a2 Move ConstantExpr to 2.5 API. 
llvm-svn: 77494
 2009-07-29 18:55:55 +00:00
Owen Anderson 4aa3295a65 Return ConstantVector to 2.5 API. 
llvm-svn: 77366
 2009-07-28 21:19:26 +00:00
Daniel Dunbar 4975db6276 Initial update to VMCore to use Twines for string arguments. 
- The only meat here is in Value.{h,cpp} the rest is essential 'const
   std::string &' -> 'const Twine &'.

llvm-svn: 77048
 2009-07-25 04:41:11 +00:00
Owen Anderson edb4a70325 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come. 
llvm-svn: 77011
 2009-07-24 23:12:02 +00:00
Owen Anderson 47db941fd3 Get rid of the Pass+Context magic. 
llvm-svn: 76702
 2009-07-22 00:24:57 +00:00
Owen Anderson 4fdeba9706 Revert yesterday's change by removing the LLVMContext parameter to AllocaInst and MallocInst. 
llvm-svn: 75863
 2009-07-15 23:53:25 +00:00
Owen Anderson b6b2530000 Move EVER MORE stuff over to LLVMContext. 
llvm-svn: 75703
 2009-07-14 23:09:55 +00:00
Torok Edwin fbcc663cbf llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
 2009-07-14 16:55:14 +00:00
Torok Edwin 56d0659726 assert(0) -> LLVM_UNREACHABLE. 
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
 2009-07-11 20:10:48 +00:00
Torok Edwin ccb29cd290 Convert more assert(0)+abort() -> LLVM_UNREACHABLE, 
and abort()/exit() -> llvm_report_error().

llvm-svn: 75363
 2009-07-11 13:10:19 +00:00
Owen Anderson 1e5f00e7a7 This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!? 
llvm-svn: 75200
 2009-07-09 23:48:35 +00:00
Owen Anderson 38264b1554 "LLVMContext* " --> "LLVMContext *" 
llvm-svn: 74878
 2009-07-06 23:00:19 +00:00
Owen Anderson e70b637033 More LLVMContext-ification. 
llvm-svn: 74807
 2009-07-05 22:41:43 +00:00
Owen Anderson 340288c621 Even more passes being LLVMContext'd. 
llvm-svn: 74781
 2009-07-03 19:42:02 +00:00
Dan Gohman adfd42a3c8 Use Type::getScalarType. 
llvm-svn: 73451
 2009-06-16 00:20:26 +00:00
Jay Foad e57ba2eab5 Use cast<> instead of dyn_cast<> for things that are known to be 
Instructions.

llvm-svn: 73002
 2009-06-06 17:49:35 +00:00
Eli Friedman ee94e3cc9e PR4286: Make RewriteLoadUserOfWholeAlloca and 
RewriteStoreUserOfWholeAlloca deal with tail padding because 
isSafeUseOfBitCastedAllocation expects them to.  Otherwise, we crash 
trying to erase the bitcast.

llvm-svn: 72688
 2009-06-01 09:14:32 +00:00
Duncan Sands af9eaa830a Rename PaddedSize to AllocSize, in the hope that this 
will make it more obvious what it represents, and stop
it being confused with the StoreSize.

llvm-svn: 71349
 2009-05-09 07:06:46 +00:00
Chris Lattner c48091f141 fix RewriteStoreUserOfWholeAlloca to use the correct type size 
method, fixing a crash on PR4146.  While the store will 
ultimately overwrite the "padded size" number of bits in memory,
the stored value may be a subset of this size.  This function
only wants to handle the case where all bits are stored.

llvm-svn: 71224
 2009-05-08 15:54:41 +00:00
Chris Lattner 69223bb7f5 fix a crash on a pointless but valid zero-length memset, rdar://6808691 
llvm-svn: 69680
 2009-04-21 16:52:12 +00:00
Zhou Sheng 4e2af3cb55 Explicitly check for StoreInst, do not lose the chance to delete 
unused loads or bitcasts.

llvm-svn: 67202
 2009-03-18 12:48:48 +00:00
Zhou Sheng 05bea906c1 Revert my previous change on Local.cpp, instead, fix the bug on scalarrepl. 
If the instruction has no users, it is also not only used by debug info 
and should not be deleted.

llvm-svn: 67194
 2009-03-18 10:13:08 +00:00
Chris Lattner 21a84f3054 teach SROA to handle promoting vector allocas with a memset into them into 
a vector type instead of into an integer type.

llvm-svn: 66368
 2009-03-08 04:17:04 +00:00
Chris Lattner c009757761 Enhance SROA to "promote to scalar" allocas which are 
memcpy/memmove'd into or out of.  This fixes a serious
perf issue that Nate ran into.

llvm-svn: 66366
 2009-03-08 04:04:21 +00:00
Chris Lattner dc35e5b43a change the MemIntrinsic get/setAlignment method to take an unsigned 
instead of a Constant*, which is what the clients of it really want.

llvm-svn: 66364
 2009-03-08 03:59:00 +00:00
Chris Lattner 334268a211 Introduce a new MemTransferInst pseudo class, which is a common 
parent between MemCpyInst and MemMoveInst, simplify some code to
use it.

llvm-svn: 66361
 2009-03-08 03:37:16 +00:00
Devang Patel 25b625165f While converting an aggregate to scalare, ignore and remove aggregate's debug info. 
llvm-svn: 66262
 2009-03-06 07:03:54 +00:00
Evan Cheng 5fd4fc76bf SRThreshold is meant to be inclusive. 
llvm-svn: 66227
 2009-03-06 00:56:43 +00:00
Chris Lattner a41bb40458 complete comment. 
llvm-svn: 66055
 2009-03-04 19:23:25 +00:00
Chris Lattner b5b0c87be6 this wasn't intended to be committed. 
llvm-svn: 66054
 2009-03-04 19:22:30 +00:00
Chris Lattner 5c204c92a4 Fix PR3720 by properly propagating alignment information from memcpy/memmove 
onto element accesses.

llvm-svn: 66053
 2009-03-04 19:20:50 +00:00
Bill Wendling a68fc7af63 Use > instead of >=. We want to promote aggregates of 128-bytes. 
llvm-svn: 65960
 2009-03-03 19:18:49 +00:00
Bill Wendling 3e44bf3c4b Reapply r65755, but reversing "<" to ">=". 
llvm-svn: 65945
 2009-03-03 12:12:58 +00:00
Bill Wendling 38eae046cf Temporarily revert r65755. It was causing failures in the self-hosting 
testsuite:

Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/nancvt.ll
Failed with exit(1) at line 2
while running: grep 2147027116 nancvt.ll.tmp | count 3
count: expected 3 lines and got        0.
child process exited abnormally
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/vec_ins_extract.ll
Failed with exit(1) at line 1
while running:  llvm-as < /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/vec_ins_extract.ll |  opt -scalarrepl -instcombine |   llc -march=x86 -mcpu=yonah | not /usr/bin/grep sub.*esp
      subl      $28, %esp
      subl      $28, %esp
child process exited abnormally

And more.

llvm-svn: 65758
 2009-03-01 03:55:12 +00:00
Chris Lattner e2bb5e31c8 hoist the check for alloca size up so that it controls CanConvertToScalar 
as well as isSafeAllocaToScalarRepl.

llvm-svn: 65755
 2009-03-01 02:26:47 +00:00
Devang Patel da1a632a87 Use early exits. Reduce indentation. 
llvm-svn: 64226
 2009-02-10 19:28:07 +00:00
Devang Patel caf4485781 Enable scalar replacement of AllocaInst whose one of the user is dbg info. 
llvm-svn: 64207
 2009-02-10 07:00:59 +00:00
Chris Lattner bbbb74372b fix PR3489, use bits instead of bytes. 
llvm-svn: 63916
 2009-02-06 04:34:07 +00:00
Chris Lattner ef37dc8511 teach "convert from scalar" to handle loads of fca's. 
llvm-svn: 63659
 2009-02-03 21:08:45 +00:00
Chris Lattner f5df53cb46 refactor the interface to ConvertUsesOfLoadToScalar, 
renaming it to ConvertScalar_ExtractValue

llvm-svn: 63658
 2009-02-03 21:01:03 +00:00
Chris Lattner 576baa4adf convert ConvertUsesOfLoadToScalar to use IRBuilder, 
no functionality change.

llvm-svn: 63652
 2009-02-03 19:45:44 +00:00
Chris Lattner c1fb96d347 switch ConvertScalar_InsertValue to use an IRBuilder, no 
functionality change.

llvm-svn: 63651
 2009-02-03 19:41:50 +00:00
Chris Lattner 18f56c295c make scalar conversion handle stores of first class 
aggregate values.  loads are not yet handled (coming
soon to an sroa near you).

llvm-svn: 63649
 2009-02-03 19:30:11 +00:00
Chris Lattner 73eff2e6e8 Make SROA produce a vector only when the alloca is actually 
accessed at least once as a vector.  This prevents it from
compiling the example in not-a-vector into:

define double @test(double %A, double %B) {
	%tmp4 = insertelement <7 x double> undef, double %A, i32 0
	%tmp = insertelement <7 x double> %tmp4, double %B, i32 4
	%tmp2 = extractelement <7 x double> %tmp, i32 4
	ret double %tmp2
}

instead, producing the integer code.  Producing vectors when they
aren't otherwise in the program is dangerous because a lot of other
code treats them carefully and doesn't want to break them down.
OTOH, many things want to break down tasty i448's.

llvm-svn: 63638
 2009-02-03 18:15:05 +00:00
Chris Lattner 80810b4c2d add another case of undefined behavior without crashing, PR3466. 
llvm-svn: 63620
 2009-02-03 07:08:57 +00:00
Chris Lattner 6aa6b1f263 Teach ConvertUsesToScalar to handle memset, allowing it to handle 
crazy cases like:

struct f {  int A, B, C, D, E, F; };
short test4() {
  struct f A;
  A.A = 1;
  memset(&A.B, 2, 12);
  return A.C;
}

llvm-svn: 63596
 2009-02-03 02:01:43 +00:00
Chris Lattner 09b65ab288 rearrange how SRoA handles promotion of allocas to vectors. 
With the new world order, it can handle cases where the first
store into the alloca is an element of the vector, instead of
requiring the first analyzed store to have the vector type 
itself.  This allows us to un-xfail 
test/CodeGen/X86/vec_ins_extract.ll.

llvm-svn: 63590
 2009-02-03 01:30:09 +00:00
Chris Lattner 43cecd7c26 inline SROA::ConvertToScalar, no functionality change. 
llvm-svn: 63544
 2009-02-02 20:44:45 +00:00
Chris Lattner 18eba4f211 Fix a bug which caused us to miscompile a couple of Ada 
tests.  Thanks for the beautiful reduced testcase Duncan!

llvm-svn: 63529
 2009-02-02 18:02:59 +00:00
Duncan Sands 6f361ff345 Fix a comment (bytes -> bits), reformat a comment 
and remove trailing whitespace.  No functionality
change.

llvm-svn: 63511
 2009-02-02 10:06:20 +00:00